The U.S. plans on being an active partner as efforts intensify to get Europe get back on its feet financially, Treasury Secretary Timothy Geithner told CNBC Friday.

With global leaders preparing for next month’s Group of 20 nations (G20) summit in Cannes, France, the International Monetary Fund — of which the U.S. is the greatest contributor — is being relied on to help underwrite whatever efforts are needed to backstop toxic European sovereign debt .

Geithner said the International Monetary Fund (IMF) has “very substantial” resources to fund a device that could look like the Troubled Asset Relief Program, which helped navigate American financial institutions through the crisis in 2008 and 2009.

“Through the IMF, of course, we’re already playing a very major role,” he said in a live interview in Paris. “We’re happy to see the IMF continue to play that role in support of a more forceful, comprehensive strategy where Europe’s own resources—very ample resources—are deployed on a much more substantial scale.”